CS8427-CZZ

Audio Special Purpose Overview

The CS8427-CZZ is a stereo digital audio transceiver manufactured by Cirrus Logic, housed in a 28-TSSOP package. It supports AES3, IEC-60958, S/PDIF, and EIAJ CP1201 standards with an adjustable sample rate up to 96 kHz. The device operates on a +5.0 V analog supply (VA+) and a +3.3 V or +5.0 V digital interface (VL+). Key features include low-jitter clock recovery, differential cable drivers/receivers, and on-chip channel status/user data buffers for block read/write access via a microcontroller port.

Audio Special Purpose Feature Summary

• Complete compatibility with EIAJ CP1201, IEC-60958, AES3, and S/PDIF standards
• Low-jitter clock recovery mechanism for clean recovered clocks from incoming AES3 streams
• On-chip Channel Status and User Data Buffer Memories permitting block reads and writes
• Flexible 3-wire serial digital I/O ports
• Microcontroller and Standalone Modes

Audio Special Purpose Procurement Notes

This component is End-of-Life (EOL) / Discontinued. Verify availability through last-time-buy options or distributor surplus. Ensure the specific suffix 'CZZ' corresponds to the TSSOP-28 package as defined in the ordering information.

Audio Special Purpose Selection Notes

Select this component for applications requiring a single-chip solution for both AES3/S/PDIF transmission and reception. Ensure the design accommodates the +5.0V analog supply requirement. Consider the OMCK system clock mode if external jitter attenuation is needed. Verify that the 28-pin TSSOP footprint fits the PCB layout constraints.

Audio Special Purpose Part Context

The CS8427 belongs to Cirrus Logic's family of digital audio interface transceivers. The '-CZZ' suffix specifically denotes the commercial grade variant (-10°C to +70°C) packaged in a 28-pin Thin Shrink Small Outline Package (TSSOP). Other variants include the '-CSZR' (SOIC-28 Reel) and '-CSZ' (SOIC-28 Tube).

Audio Special Purpose Replacement Considerations

As the CS8427 is discontinued, direct replacements are limited. Check for remaining stock of pin-compatible variants such as CS8427-CSZR (SOIC-28) or CS8427-CZ (SOIC-28). Evaluate modern alternatives from Cirrus Logic or other manufacturers for new designs.